package main

import (
	"fmt"
	"sort"
)

func main() {
	a := []int{2, 5, 3, 7, 3, 7, 4, 6, 9, 2}
	sort.Ints(a)
	for i, v := range a {
		fmt.Printf("%2d%2d\n", i, v)
	}
}
